Document Type : Research Article


1 MSC student . Department of Mechanical and Aerospace, Engineering, Shahrood University of Technology. Shahroud.Iran.

2 Assistant Professor. - Department of Mechanical and Aerospace, Engineering, Shahrood University of Technology, Shahrood, Iran.


In this research, the method of simulating the rarefied gas flow on a flat plate and calculating aerodynamic properties have been investigated using direct simulation Monte Carlo or DSMC-Open Foam Software. One of the most efficient methods for simulating rarefied gas flow in nonequilibrium conditions is the direct simulation Monte Carlo or DSMC simulation method, in which the gas is considered as a particle. In this study, using DSMC-OpenFoam software, the results obtained from a flat plate at zero angle of attack are validated with the available results, with the accuracy of less than 15% error.  In the following as an innovation, the flow on the vertical plane and the calculation of aerodynamic forces as well as the effect of different angles of the flat plane on the satellite panel are investigated. It has been shown that the drag coefficient in the vertical plane mode is 10 times that of the horizon flat plane. The method and software introduced in this research is a powerful method for various simulations of drag on satellites under rarefied gas condition. ‌‌


Main Subjects

[1]   I. D. Boyd, "Computation of atmospheric entry flow about a Leonid meteoroid," Earth, Moon, and Planets, vol. 82, pp. 93-108, 1998.
[2]   R. Zakeri, R. Kamali-Moghadam, and M. Mani, "Modified Collision Energy, a New Chemical Model in the DSMC Algorithm," Journal of Heat Transfer, vol. 141, 2019.
[3]   A. J. Lofthouse, "Nonequilibrium hypersonic aerothermodynamics using the direct simulation Monte Carlo and Navier-Stokes models," Michigan Univ Ann Arbor2008.
[4]  G. Bird, "Shock-wave structure in a rigid sphere gas," in Proceedings of the 4th International Symposium on Rarefied Gas Dynamics, New York, 1965, 1965, pp. 216-222.
[5]  J. N. Moss, "Direct simulation Monte Carlo simulations of ballute aerothermodynamics under hypersonic rarefied conditions," Journal of Spacecraft and Rockets, vol. 44, pp. 289-298, 2007.
[6]  I. D. Boyd, "Vectorization of a Monte Carlo simulation scheme for nonequilibrium gas dynamics," Journal of Computational Physics, vol. 96, pp. 411-427, 1991.
[7]   R. F. Probstein, "Shock wave and flow field development in hypersonic re-entry," ARS Journal, vol. 31, pp. 185-194, 1961.
[8]  M. F. Storz, B. R. Bowman, M. J. I. Branson, S. J. Casali, and W. K. Tobiska, "High accuracy satellite drag model (HASDM)," Advances in Space Research, vol. 36, pp. 2497-2505, 2005.
[9]  E. Doornbos, M. Förster, B. Fritsche, T. van Helleputte, J. van den IJssel, G. Koppenwallner, et al., "Air density models derived from multi-satellite drag observations," in Proceedings of ESAs Second Swarm International Science Meeting. Potsdam. 24, 2009.
[10]  K. Moe, M. M. Moe, and S. D. Wallace, "Improved satellite drag coefficient calculations from orbital measurements of energy accommodation," Journal of spacecraft and rockets, vol. 35, pp. 266-272, 1998.
[11]  P. M. Mehta, C. A. McLaughlin, and E. K. Sutton, "Drag coefficient modeling for grace using Direct Simulation Monte Carlo," Advances in Space Research, vol. 52, pp. 2035-2051, 2013.
[12]  E. M. Gaposchkin, "Calculation of satellite drag coefficients," MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB1994.
[13]  P. M. Mehta, A. Walker, C. A. McLaughlin, and J. Koller, "Comparing physical drag coefficients computed using different gas–surface interaction models," Journal of Spacecraft and Rockets, vol. 51, pp. 873-883, 2014.
[14]  "G.A.B. Consulting Pty Ltd “The DS3V Program User’s Guide.” Version 2.5, 2006.."
[15]  T. Scanlon, E. Roohi, C. White, M. Darbandi, and J. Reese, "An open source, parallel DSMC code for rarefied gas flows in arbitrary geometries," Computers & Fluids, vol. 39, pp. 2078-2089, 2010.
[16]  C. Cercignani, Rarefied gas dynamics: from basic concepts to actual calculations vol. 21: Cambridge university press, 2000.
[17]  G. A. Bird, "Molecular gas dynamics and the direct simulation of gas flows," Molecular gas dynamics and the direct simulation of gas flows, 1994.
[18]  J. Bullard, "Satellite Drag Analysis using Direct Simulation Monte Carlo (DSMC)," 2018.